Novel isocyanate-free self-curable cathodically depositable epoxy coatings: Influence of epoxy groups on coating properties

Hydrophobic Coatings for Corrosion Control of Aluminum Heat Exchangers

“…Also, if the more external or outer-layer morphology or structure of the system is changed or modified, a hydro-or superhydrophobic system is promoted [7][8][9][10]. The strategies or methodologies contemplating a superficial change through encapsulation systems promised advantageous success; nevertheless, few developments really achieved an effective corrosion protection, since the effect decreases as a function of elapsed time of surface (coating) contact electrolyte [11][12][13].…”

“…To obtain a hydrophobic outcome, a "Lotus leave" effect must be generated, which is when the surface attains a roughness level that effectively repels any type of aqueous dissolution. To simulate this effect on coating surfaces, various types of species, such as potassium stearate or calcium hydroxide, porous silica or synthetic urea formaldehyde capsules, styrene-based copolymers such as methyl-methacrylate, were encapsulated and incorporated into coating systems, among others [7][8][9][10][11][12][13][14].…”

Synthesis and assessment of novel anticorrosive polyurethane coatings containing an amine-functionalized nanoclay additive prepared by the cathodic electrophoretic deposition method

“…EDP of materials can be performed by cathodic or anodic methods; however, cathodic deposition has important advantages regarding the possible materials can be deposited by this method. 10 Different classes of materials from biological macromolecules like chitosan 11 up to organic polymeric materials such as epoxy 12,13 and acrylate [14][15][16] resins as well as polyurethanes 17,18 have been modied for the application as surface coatings of metallic substrates through EPD process. Due to advantages such as solvent, stain and chemical resistance, toughness with exibility, environmental safety, good adhesion and rheology characteristics the application of waterborne polyurethane dispersions was considered as the main chemical framework of the coating materials developed in the present study.…”